"A lot of my co-stars have been sexy guys my age who are really respectful and cool. So, why not? I'm not going to pretend it's not fun."

The actress, who starred in Lovelace, dishes on her onscreen love affairs. saying, "When you're young, it's hard not to get together with your co-star. It's not always a great idea, but the experience of making a television show or movie is so intimate and romantic. And I love acting like I'm in love!"

One of her memorable sex scenes was the girl-on-girl action with Megan Fox in 2009's Jennifer's Body.

"We kissed really well together! We have similar kissing styles! If I watch that scene, it's actually really sexy."

She adds, "We got it done for the masses, and, sadly, the masses didn't show up."

(The film did not do well at the box office.)

But they have taken notice of Seyfried ever since she appeared in the 2012 hit Les Miserables.

"I don't think I was really famous until last year-and I felt like no one paid much attention to what I was doing. That was good. But Les Mis was an international hit, and that changed things."